Elizabeth Twining Passivhaus Almshouses, Richmond
CLIENT The Richmond Charities
DATES Completed December 2024
This proposal, on behalf of The Richmond Charities, is for bespoke, over 65s, accommodation in the form of five, contemporary, one bedroom almshouses, to replace the existing garages behind the properties on St Mary’s Grove.
The new dwellings are single storey to mitigate any visual impact, allowing ease of accessibility for the future residents. All windows face into the site, looking across new communal landscaped gardens and small patio courtyards.
They are a mix of four full wheelchair use dwellings and one accessible/adaptable dwelling, designed to Passivhaus standards.
Link to Passive House Database: Click here
Left: Passivhaus Certification
SUSTAINABILITY
Heating Load (W/m²): 9 (Passivhaus target <10)
Airtightness test results (n50): 0.5 (Passivhaus target <0.6)
Primary Energy Demand (kWh/(m²a)): 56 (Passivhaus target <60)
Annual CO2 Produced (Tonnes): 0.0 (Net-Zero Carbon)
EPC Rating Average (%): 95 A
Environmental Impact Rating (%): 99 A
Expected Annual Bills ‘unregulated’: £123 (Heating, hot water, lighting)
Electricity Exported to Grid (kWh/yr): 677 (SAP10)
“We have worked with Clive Chapman on several Passivhaus projects. Their team is very knowledgeable in PHPP and can produce beautiful, efficient, low-energy and Passivhaus buildings.”
